Improvement in machines for bruising malt



JAMES FfTlBBLE, improvement in Machines for Bruising Malt.

NO. "4,882, Patent ed May16,1871. V

hinitdi $21M JAMES FLOWER TIBBLE,

OF DETROIT; A MICHIGAN.

Letters Patent No. 114.882, dated May 16, 1871.

IMPROVEMENT IN MACHINES FOR BRUI SING MALT.

The Schedule referred to lnlthese Letters Patent and making part 0! thesame.

To whom it may concern.-

Be it known that 1, JAMES FLOWER TIBBLE, of Detroit, in the county ofWayne and State of Michigan,

have invented anew and useful Improvement in Machines for Bruising Malt;and I do declare that the following is a true and accurate descriptionthereof, reference being bad to the accompanying drawing and to l theletters of reference marked thereon and being a part of thisspecification, in which-'- Figure l is a perspective;

Figure 2.is a vertical longitudinal section; and

Figure 3 is a detached section.

Like letters indicate like parts in each figure.

The nature of this invention relates to the construction of a machine tobe employed in bruising malt preparatory for the mash-tub, by means ofwhich the properties of the malt are all preserved and utilized.

The ordinary method is to grind or break up the malted grain, and inthis process many of the valuable properties arelost.

- The invention consists- First, in employing a pair of rolls, one ofwhich is adjustable, rotated toward each other in an air-tight case, sothat the malted grain will be bruised in passing between the rolls andthe lighter portions of the grain prevented from escaping.

Second, in a new and ingenious method of controlling the feed andregulating the same to the speed with which the rolls revolve.

Third, in the combination and arrangement of all the parts to producethe required result, as more fully hereafter described.

In the accompanying drawing- A represents a case, providedwith a cap, B,surmounted upon which is the spout 0, within which the slide D has areciprocating movement, and the hopper E, which is provided with a sieveor grate, F.

The lower end of the case is provided with a mouth, G, through which thebruised and malted grain is delivered after being operated upon.

In proper boxes H, in each side of this case, are journaled the rolls 1,which receive motion from any suitable source, provided that said rollsrotate, when in use, toward each other.

One of these rolls, which I will denomiuate I, isjournaled in boxes,which may have a lateral play, as shown at J.

A suitable spring, K, provided with a set-screw, L,

and prolongations M, is so arranged in one end of the.

case that the prolongation s, actuated by the spring and setscrew, willallow the operator to change the position laterally of the-roll I, andwill allow said roll to give and permit any hard and foreign substanceto pass through.

The slide D is provided with an opening, a, through the same,corresponding to the opening at the bottom of the spout O, and the endof said slide is connected, by means of a bell-crank, N, and suitableconnectingrod 0, with a governor, P, which may be of the ordinaryconstruction; the whole so arranged that when the governor is at restthe slide will close the throat of the spout, and when in motion thevalve will be withdrawunntil the openingfa, will allowtbe grain in .thehopper to pass, to the rolls, and the speed of the governor willregulate the size of the opening through the slide, so that when therolls and governor are rotating at full speed the delivery of grain willbe full and ample, and more or less out off, as may be required by thespeed, the object'being to regulate the delivery to the rolls accordingto their capacity to bruise, and this capacity is in turn regulated bythe speed of their rotation.

The case and cap should be air-tight, to prevent the escape of any ofthe properties of the malt.

The grate F is to prevent the entrance of any foreign and hardsubstances with the malt.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. The combination, with an air-tight case, A, of the rolls I I,arranged to operate as and for the purposes herein set forth.

2. The slide D and spout or chute O, in combination with the governor Pand the necessary connections, as and for the purposes set forth.

3. The combination of the case A, rolls I 1, boxes H, spring K,set-screw L, spout O, slide D, hopper E,

connections N O, and governor P, when the parts are constructed andarranged and operate substantially as and for the purpose herein setforth. I

' JAMES FLOWER TIBBLE.

Witnesses:

'lnos. S. SPRAGUE, H. F. EBERTS.

